Role of Valsalva Maneuver in Cardiology скачать в хорошем качестве

Role of Valsalva Maneuver in Cardiology

Description at: https://johnsonfrancis.org/profession... Discussion on role of Valsalva maneuver in cardiology The initial description of Valsalva maneuver was published by Valsalva in 1704. It was forced expiratory effort against the closed glottis, nose, and mouth, lasting for a few seconds. The maneuver was employed with the aim of expelling foreign bodies or exudates from the middle ear. Even today otolaryngologists use variations of the maneuver very often. Weber in 1851 detailed the cardiovascular changes associated with maneuver, making it useful for diagnostic purpose. Hence some authors prefer to call it as Valsalva-Weber maneuver. The classical four phases of Valsalva maneuver and its hemodynamic effects were described by Hamilton WF et al in 1936. In 1947 Rushmer made the assessment objective by expiratory straining against the mercury column of a sphygmomanometer. Later this was changed to an aneroid manometer for better convenience.